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Finding the Fourth Proportional to 9,065.74, 12,510.92 and 5,087.12

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Solution

The fourth proportional to 9,065.74, 12,510.92 and 5,087.12 is: 7,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.74 : 12,510.92 = 5,087.12 : x
  2. Step 2: Convert to fraction form
    9,065.74/12,510.92 = 5,087.12/x
  3. Step 3: Cross multiply
    9,065.74x = 12,510.92 × 5,087.12
  4. Step 4: Simplify right side
    9,065.74x = 63,644,551.35
  5. Step 5: Solve for x
    x = 63,644,551.35/9,065.74
  6. Step 6: Final answer
    x = 7,020.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.